Igniting device for gas-engines.



No. 648,689. Patented May I, I900. L. HUTCHINSGN.

IGNITING DEVICE FOR GAS ENGINES.

(Application filed Nov: 11, 1899.)

2 Sheets-Shet I.

(No Model.)

I I VENTEI U No. 643,689.- Patented May I, 1900 L. uurcnmsou.

IGNITING DEVICE FOR GAS ENGINES.

(Application filed Nov. 11, 1899.)

' -2 S heetsSheet 2,

(No Model.)

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lN'vENTmR:

; MASSACHUSETTS;

To all whom it. miiycbncernr UNITED i f I'JQEWELLYNfnufrbtfl isQNio i GAMER "ennnssn Hush T O 1). MELLERDF ME P X.

" ikien'lrmcZ EYlQE Be it known that I, LLEWELLYN Ho' rcnm; SON, of Cambridge, in the county of Middlesex-and State bi Massachusetts, have in ven t-' edcertain newfiwand useful Improvements in Igniting Devices, of whiohftlje following is a specification.

This invention relates to igniting devicessuch as are required for explosive-gas engi nes and. other purposes. I

The natureand object of the invention will 1 appear from the succeeding description and" claims..

.A practical embodiment of my invention is set forth in the succeeding specification, taken in connection with the accompanying drawings;

. Of thedrawings, Figuresl and 2 represent diagrammatic views illustrating my invention and showing the movable parts in two different positions. Fig. 3 represents 'an'edge view of the circuit-controlling devices. Fig. 4 rep-.'. resents a front elevation thereof. Fig. 5 rep;

resents a sectional view' thereof. Fig. 6 representsa detail sectional view atone of the controller spindles or shafts, Fig. 7 represents'diagrammatically. the, arrangement 01;

. cylinders, crank, &c.,in the engine.

The same reference characters indicate the same parts in all the figures.

Referring-to the drawings, insi hts ,a'n

. ind notion-coil. 2 is a 'b'attery, for which may der' engine, and to this end it'jnay embody a "be substithted any other suitable "sou rceaof electricity,. iqclnded in the primary circuit? '4 of the indnctionrcoil, and 5 6 represent the cylinders of a two-cylinder explosive-engine,"

liavinga single crank-shaftl i, Figs;5 and 7; My invention as herein set forth is partic; ularly adapted for successivelyexplod'ing" the charges in the cylinders of, a multiple-cylin H A g 'inclndes'the secondarywinding of the induction' coil. "The other-terminal of said second-4 construction and arrangementas follows:' 7 ,and 8 'are tworotatable disks, of insulating" material, which, as seen in Fig. 5, are secared to two'ishort shafts or spindles 9 10, which have suitable bearings and are provided with gearsll 12 of equal size meshing with a. pini n 13, secured to the crank-shaft 14 of I the engine, the pinion beingillustrated as'of "halt the diameter of the gears, up to comon the cylindricalsurface, which includes the .TfiJA'S GN R A'AQfl DA .BQSTQON os siir'e sssi,

plete two rotations to oneofithe gears.- The rotatable members 7 and 8 constitute parts of two 'circuit-controllers,-. the. oneincluding the member 7 beinghe'rein termedthe primary circuit-controller, while that which includes *the member Sis termed the secondary circuit-controllers v i "15isaconducti\-'e riugfpreterably of metal,

mounted on the'member7andhaving two lateral projections 16 .17, constituting contacts, separated by a predetermined angular distance and having insulating material in terposed between them. ,,An insulating-plate 18', which-isnormally stationary, :bnt is capable' of rotation about a center-*in; this case conductivering 15, and therefore withfea-ch of the contacts 16 17, and; the brush+20 rests insulating. material-and the. two-contacts 16 17; fWhen'the member 7 is rotatchfthe contacts 16 and 17' are successively broughtintoconnection with the brush 20, and the primary circuit is thereby successively made and broken twice for each revolution of the "member-7. 1: A

T emember 8 is provided with aconductive ring 21,;having'tw0 lateral-v projections 22 '23, constituting separated contacts. An insulating-base 24, normally stationary, but rotat'able about'theshaft 10, carries three contact-brushes 25/26 27. :The brush-25.-is in continuous contact with 'conductivering 21,

andthereforewith the'contacts 22, 23, and forms oneterminal of the circuit 28 29., which nected in branch circuits 32 38'with the re-' LII speclire brushes 26 27. The augularrelation of the two members 7 and 8 is such that one of the two contacts 16 1'7 will be in connection with the brush 20 at the sametime that one of the contacts 22 23 is in connection with one of the brushesZG 27, and the other con tact of the pair 161? will be in connection with the brnshQO at the sametime that the other contact of the pair 22 23 is in connec-- eoil are alternately connected and d'iscon;

nected, so as to produce an igniting-sparkbe tween the terminals of the secondary coil, and

the two pairs of ignition-points are successively constituted as the said secondary ter- ,minals simpltaneously with thecompletion of the primary circuit. y It is obvious that the rotation of the two insulating-bases lS-and 24:;carrying the several brushes-abouttheshafts 9 10 as centers,

will change the points at which the sparl; cc curs relatively to the stroke of the enginepiston, thereby timing the explosion with relation to saidstroke. I provide means for simultaneously and equally rotating said in.-.

as herein illustrated consisting of arms 3%. 35, attached to. the respective baseslS and 2t, said arms being pivotally connected at their outer ends with a link 36, adapted to receive motion from a suitable manually-operated v lever or handle.

The complete opcrative'nessotthe circuit controllers would be retained if thetwomemover, this increase otspace, occupied would frequently be undesirable in the situations in which engines are commonly. employed, there being, however, ample lateral space available ontlie side of the crank case or frameof the engine, I prefer to mount the said controllers separately in gear connection wi th the crankshaft 14, as illustrated. It is {further to be observed that the two shafts 9 and 10 in such gear connection with the crank-shaft 1-1 are then available for other uses in the" engine and are, in fact, employed in practice-,in an Fig. 4 shown as extended cam action on" said brush, operating to moi e the latter away from the contacts 16 17 when the arms 34335 are thrown over to one of theirv extremes'of position; thereby providing a cutout switch which is availablefor throwing the ignitingde ice entirely'ont of operation. I hereby disclaim such const1;.uction,as the same forms nopart of my present invention, The stud 37 is one of a pair fixed to the frame of the engine and extended through segmental slots 38in thedisk-IS to guide said disk and also having springs 40 hearing against washers al, which furnish a friction to retain the disks 1S and 24 in the positions to which they are moved.

1. An igniting device comprising an engine having a plurality of cylinders and a single crank-shaft, a. pinion attached to snid'sha-ft,

:two gears meshing with said pinion on either side of it, a plurality of ignitioupoints relating to-therespective cyli riders,- a primary and a secondary-controller attached respectively to the'sh'atts of the said two gears and controllingtlie action of the said ignition-points, combined with-the induction-coil having a source of electrical energy included in its prinn'aryv circuit, and said circuit controlled by the, primary circuit-controller, and the secondarycircuitof said coil including the ignition-points ai dcontrolled by the secondary circuit-controller. y 2.. Anignitingdevice comprising an-en'ginc having a plurality of cylinders and a single crank-shaft, a pinion attaehed'tosaid shaft, two gears meshing-with said pinion on either side 6f it,a plurality-of ignition-points relating to the respective cylinders,'aprimary and asecondary controller attached respectively to the shafts ot' the said two genrsand controlling lheaction of the said ignition-points, two sets of contact-brushes relating to the respective.controllers, bases supporting said sets of brnshes'and'inovable about said shafts to vary-the timeof ignition, and a link-connecting said two bases and causing them to move together in co|nmon,;conibined with the induction-coil having a source of electrical energy included. in its primary circuit, and said circuit controlled .by the primarycircui'tcon troller,-'and the secondary circnitof said coil incl-uding the ignition-points and controlled by the secondary circuit-controller.

In testimonywhereof I have affixed my signa'tnro in presence of twowitnesses.

LLE ELL N nurcnmson. Witnesses! A. D. HARRISON,

M. BLMAY. 

